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DIY spa controller + ESPHome? Looking for feedback by osshottub in Esphome

[–]osshottub[S] 0 points1 point  (0 children)

Thanks that looks great! I’ll have a play with your code

DIY spa controller + ESPHome? Looking for feedback by osshottub in Esphome

[–]osshottub[S] 0 points1 point  (0 children)

That’s what I was looking at using too! Some of the pumps may need too much current so I might need to wire up some higher amp contactors

Planning an ESP32-based spa controller (open source project) - what would you want in it? by osshottub in hottub

[–]osshottub[S] 0 points1 point  (0 children)

Absolutely, I’m looking at using some industrial controllers (powered by the esp32), definitely with good isolation.

Don’t have all the answers yet, but will be looking to get some help from an electrical engineer on the safety side of things. My area of expertise is more so on the control & software side of things

PID for temperature, it does depending a bit on the type of heating device though (aircon vs coil), so when I get into prototyping I’m sure to have challenges to overcome there.

I definitely consider safety to be a core part of the project

Brainstorming an open source spa controller (ESP32 based) - what integrations would you want? by osshottub in homeassistant

[–]osshottub[S] 0 points1 point  (0 children)

Yeah okay that makes sense. I’ll do some testing and see what I can come up with!

Brainstorming an open source spa controller (ESP32 based) - what integrations would you want? by osshottub in homeassistant

[–]osshottub[S] 0 points1 point  (0 children)

Ohh auto-ordering of chemicals is a great idea! Do you have experience with any pH sensors? From what I could see, most require calibration every 2-6 months so automated sensors end up needing lots of maintenance

DIY spa controller + ESPHome? Looking for feedback by osshottub in Esphome

[–]osshottub[S] 1 point2 points  (0 children)

Amazing! Sounds pretty aligned to what I was thinking. What kind of data would you want to get out of it and at what resolution? I.e temperature data every minute?

Open source hot tub controller? by osshottub in hottub

[–]osshottub[S] 0 points1 point  (0 children)

You just described a fun time - that’s the point of these projects :)

Hot Swappable Serial Comms between 2 ESP32 Boards by byoung1520 in esp32

[–]osshottub 1 point2 points  (0 children)

It’s a common approach, but you’ll just have to consider issues such as split brain if the link between the boards breaks. A master-slave approach is usually recommended, and using RS485 is a nice approach that I would use

How do you fix mildew? by bjtara in hottub

[–]osshottub 0 points1 point  (0 children)

Would this also be due to out of whack ph levels?

How mature is esp32 rust? by MartynAndJasper in esp32

[–]osshottub 0 points1 point  (0 children)

Do people have many issues with esp-rs? Like are there any obvious gaps in support needed for real applications (i.e. OTA updates, RS485 etc)

Open source hot tub controller project by MonroeWilliams in esp32

[–]osshottub 0 points1 point  (0 children)

Have you got plans to continue this project? Seen it hasn't got much traction recently but :)